Run: 2026-09-03-01M1K4SD6T68CZHVXHY1YA716C

Run Details

Duration:
38.7s
Cost:
$0.014231
Provider:
Meta

Model input

System
You are an expert novelist with a gift for vivid, immersive prose. You write in tight third-person limited point of view with a strong narrative voice. Your prose is clean, precise, and engaging — you favor strong verbs, concrete details, and natural-sounding dialogue. You will be given a story bible (codex) containing canonical details about characters, locations, items, and lore. Use these details to ground your writing in the established world. Stay consistent with the codex. Write only the prose of the scene. Do not include titles, chapter headings, markdown formatting, or any commentary before or after the scene.
User/Human
<codex> <character id="4412" name="Aurora Carter" aliases="Rory, Laila, Aurora, Carter, Malphora" pronouns="she/her" species="Human" storyRole="Protagonist"> <eyeColor>bright blue</eyeColor> <hair>straight shoulder-length black</hair> <height>5'6"</height> <age>25</age> <scar>small crescent-shaped scar on her left wrist from a childhood accident</scar> <description>Aurora, referred to by her friends as Rory, is cool-headed, intelligent, and known for quick out-of-the-box thinking.</description> <backstory>Born in Cardiff to an Irish barrister father (Brendan Carter) and Welsh teacher mother (Jennifer Carter née Ellis), Rory reluctantly pursued Pre-Law at Cardiff University. She fled to London at the behest of her childhood friend Eva after leaving an abusive ex named Evan. By day, Rory works part-time as a delivery person for Yu-Fei Cheung's Golden Empress restaurant. She lives in a flat above Silas' bar.</backstory> </character> <location id="861" name="The Fae Grove" aliases="Isolde's grove, Richmond grove, the Grove" realm="Earth (Fae-touched)"> <parkLocation>Richmond Park</parkLocation> <standingStones>ancient oak standing stones mark the boundary</standingStones> <timeBehavior>time moves differently — an hour inside can be minutes or days outside</timeBehavior> <flora>wildflowers bloom year-round</flora> <description>A hidden clearing that exists in a pocket between Earth and the Fae realm.</description> </location> <item id="2001" name="Heartstone Pendant" aliases="the pendant, Heartstone" type="Artifact" origin="Dymas"> <gemstoneColor>deep crimson</gemstoneColor> <chainMaterial>silver chain</chainMaterial> <size>roughly the size of a thumbnail</size> <behavior>pulses faintly with warmth when near a Hel portal</behavior> <glow>faint inner glow</glow> <description>Given to Aurora by an unknown benefactor.</description> </item> </codex> Write a fully fleshed out scene of at least 1000 words in the horror genre. A character is alone in a strange, isolated place at night. They came here for a reason, but something feels off from the moment they arrive. The wrongness builds slowly — sounds that shouldn't be there, things that move at the edge of vision, a growing certainty that they are not alone. Build tension through restraint, not through gore. Use the codex entries above as your world reference for the character and setting. Only include the prose of the scene without any markdown or commentary.

Model response

AI
She hadn't meant to be in Richmond Park after dark. The gates had been locked since sunset, the posted hours white on green and unambiguous, but the pedestrian gap by the Roehampton side had been left bent wide enough for a body to slip through if that body turned sideways and sucked in a breath. Rory did. Her shoulder bag caught on the iron and she had to tug it free. Straight black hair, cut blunt at her shoulders, swung forward and stuck to her cheek in the damp. She pushed it back and stood still on the other side, listening. Traffic should have been audible even here, a low wash from the A3, the occasional siren bleeding in from the city. There was nothing. The air was too still for a February night, not cold enough, not warm enough, just flat and close the way air got before a storm. She could hear her own breathing too loud inside her jacket. She told herself she was being stupid. She'd been through the park a hundred times on her bike doing drops for the Golden Empress, cutting across on daylight routes where the deer watched her pass with bored eyes. She knew this place. That was why Eva's text had made any sense at all. *Can't find it. You know the one with the stones? Meet me?* No reply after. Eva never turned her location off. Rory had checked. The dot had pulsed steadily in the middle of the park, right where the old oaks stood in a rough circle that most joggers assumed was some kind of folly and most dog walkers avoided because the dogs wouldn't go in. The Grove. Isolde's grove, though Rory had never heard anyone call it that out loud until last autumn. She'd told Eva not to go there alone. Eva had laughed. Now Rory was alone instead. She started walking. Her trainers sank a little into the path. It had rained in the afternoon and the ground should have been mud and churned leaves, but under the oaks it turned spongy, too soft, and strangely lit. She clicked on her phone torch and then immediately clicked it off again. The dark felt less hostile than the narrow cone of light that made everything beyond it blacker. Moonlight should have been enough but the canopy was thick for winter, branches bare and interlaced overhead, and still, impossibly, the clearing ahead was visible. The standing stones marked the boundary. They weren't decorative. They were ancient oaks themselves, or what was left of them, trunk-thick pillars of wood gone stony with age, bark fused into ridges that looked carved. Seven of them, leaning inward like listeners. Between them the ground was covered in wildflowers. Rory stopped at the edge. Wildflowers did not bloom in Richmond Park in February. Not like this. The little white and yellow heads were open wide, phosphorescent in the gloom, and there were too many of them, a carpet so dense it hid the soil. The air smelled sweet and green, summer-heavy, wrong against the crisp night at her back. The pendant thumped once against her collarbone. She flinched. Her hand went to it on reflex, fingers closing around the silver chain. The Heartstone was roughly the size of her thumbnail, deep crimson even in the dark, and it had been inert as a bead when she'd left the flat above Silas' bar, cold against her skin under her shirt. Now it pulsed. Not light, not quite. A faint inner glow that she felt more than saw, and a wash of warmth that spread from the stone into her palm, up the tendons of her wrist. Near a Hel portal, Isolde had told her once, it would do that. Near a thinning. Rory's mouth went dry. She let go of the stone quickly, as if letting go would stop it. It kept pulsing, slow and steady, in time with something that was not her heartbeat. "Eva?" she called. Her voice sounded small. It didn't carry the way a voice should carry in an open space. The trees swallowed it. No answer. She stepped between two of the standing stones because not stepping in felt suddenly like a different kind of decision, one that would be noticed. The temperature changed between one footfall and the next. The sweet smell got stronger. The sound of the city, already faint, cut out entirely, as if someone had closed a door. Behind her, the path she'd come down was gone. Not dark. Gone. The trees were seamless. Rory turned in a full circle, cool-headed panic flaring bright and precise behind her ribs. She counted the stones again to fix them in place. Seven. There were still seven. But she was sure, absolutely sure, that the gap she'd entered through had been to her north and now it was to her south, or the stones had turned while she wasn't looking. She checked her phone. 22:14. She stared at it, held it up, lowered it, checked again. 22:14. The numbers didn't change. The signal bar was empty. The location dot that had been Eva's was gone. Her own dot hovered in grey nothing, then jittered and vanished. Time moves differently inside. Isolde had said it like a warning and a joke at once. An hour can be minutes. Or days. "Eva, this isn't funny," she said, louder this time, and the wildflowers shivered. There was no wind. Rory watched the shiver travel outward from where she stood, a ripple through the white blooms as if something had brushed them at ankle height and kept going. She held very still. The bright blue of her eyes was useless in this light; everything was green-grey and red afterimages from the stone's glow. Another ripple. Closer to the far stones this time. She heard it before she saw it next — a soft press of undergrowth, a footfall that was not hers, light and deliberate, on ground that shouldn't make that sound. Her head snapped toward it. Nothing there. Only flowers, only shadow between the trunks. She became aware that she was rubbing her left wrist with her thumb, pressing hard into the small crescent-shaped scar there, the one from when she was nine and caught her arm on the barbed fence behind her parents' house in Cardiff. She did that when she was thinking fast and didn't want anyone to see her thinking at all. She made herself stop. Cool-headed, she told herself. Be cool-headed. Quick and out-of-the-box, right? So think. She had come because Eva asked. Eva wasn't here. The pendant was warm because the thinning was close. Therefore she should leave. Simple logic. Except the way out had moved, and the air had weight now, and she had the distinct, skin-prickling certainty that if she turned her back on the center of the grove something would be closer when she turned back around. She turned anyway, sharply, toward the largest stone, because the alternative was to stand and wait to be approached. The clearing was empty. And then — at the very edge of vision, not where she was looking but where the eye catches movement — something shifted. Tall, too tall, and too still. She whipped her gaze to it and there was only bark, only shadow. But the afterimage remained: a suggestion of limbs that were too long, a head cocked at an angle no human neck would tolerate, standing just behind a trunk that wasn't wide enough to hide it. Her breath caught. The Heartstone flared hotter against her skin, almost uncomfortable. She took a step back without meaning to and her heel crushed flowers that gave off a burst of too-sweet perfume and did not spring back up. Another footfall. This time behind her. Soft. Patient. As if whatever made it was in no hurry and knew she would hear it. Rory spun. Nothing. She spun again, faster, hair whipping, and caught it — or caught the absence where it had been — a smear of pale movement slipping between two stones, there and then not, accompanied by a sound that was almost a breath, almost a laugh, almost the rustle of leaves in a language. She pressed her back to the largest standing stone before she realized she'd moved. The bark was cold through her coat. Solid. That helped. She could feel her own pulse hammering against the wood. The wildflowers were all leaning now. Every single head, slightly, toward the center of the grove. Toward her. She looked down and the sweetness turned sickly in her throat. In the faint crimson light leaking from her collar, she saw that the flowers had not been trampled where she stepped. They had folded. Deliberately, neatly, away from her foot, leaving a perfect print in the living carpet, and then they had not unfolded. Something was standing in the middle of the clearing. She hadn't seen it arrive. It was simply there, where a second ago there had been empty air, as if it had been there the whole time and her eyes had finally learned how to see it. It was shaped like a person the way a reflection is shaped like a person, with the proportions stretched just enough to be wrong, its skin the grey of lichen, its hair a tangle that might have been twigs. Its eyes caught the Heartstone's glow and threw it back. It wasn't looking at Rory. It was looking at the pendant, and its head tilted. Rory's hand found the stone again and clenched. The warmth burned now. She thought, absurdly and with perfect clarity, about the delivery bag still hanging from her shoulder, the insulated box inside empty, the way Yu-Fei would dock her pay if she lost it. The thought anchored her. The thing smiled, or its mouth widened. The wildflowers shivered again, a full wave this time, and the standing stones seemed to lean in, listening. Behind her, where the way out should have been, she heard very clearly, in Eva's voice, light and a little out of breath as if she'd been running, "Rory? Over here. I found it." Rory didn't move. The voice had come from the wrong direction, from deeper in the grove, from the place where the air was thickest. Her thumb found the little crescent scar on her wrist and pressed until it hurt, until the sting was real and sharp and hers. She stayed pinned to the stone, bright blue eyes fixed on the thing in the clearing that was wearing a smile that didn't fit its face, and she understood, with a cold, quick click of thought, that whatever had called her here was still calling, and that it had learned exactly how to sound like someone she would follow. The pendant pulsed, and the grove held its breath, and waited to see if she would answer.
created_at"2026-09-03T08:04:58.208Z" 9/3/2026, 8:04:58 AM
model"meta/muse-spark-1.2-20260805"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency4024
moderation_latency(null)
generation_time38700
tokens_prompt792
tokens_completion2627
native_tokens_prompt746
native_tokens_completion3129
native_tokens_completion_images0
native_tokens_reasoning812
native_tokens_cached0
num_media_prompt(null)
num_input_audio_prompt(null)
num_media_completion0
num_search_results(null)
num_fetches(null)
web_search_engine(null)
origin"https://ncbench.com/"
is_byokfalse
finish_reason"stop"
native_finish_reason"completed"
service_tier"auto"
usage0.01423075
router(null)
user_agent"langchainjs-openai/1.0.0 ((node/v24.19.0; linux; x64))"
http_referer(null)
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session_id(null)
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api_type"completions"
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upstream_id"resp_6a992a2a9926d85c547946c2"
provider_responses
0
endpoint_id"ffc8e76e-808a-44d2-bd21-c6ac16e721cb"
id"resp_6a992a2a9926d85c547946c2"
is_byokfalse
latency383
model_permaslug"meta/muse-spark-1.2-20260805"
provider_name"Meta"
status200
total_cost0.01423075
cache_discount(null)
upstream_inference_cost0
provider_name"Meta"
response_cache_source_id(null)
data_region"global"
workspace_id"97e315e5-d303-487d-83c1-83180e8a13d4"

Evaluation details

Result Evaluator Details Meta Data
100.00% Adverbs in dialogue tags
Target: ≤10% dialogue tags with adverbs
totalTags4
adverbTagCount0
adverbTags(empty)
dialogueSentences3
tagDensity1
leniency1
rawRatio0
effectiveRatio0
77.97% AI-ism adverb frequency
Target: <2% AI-ism adverbs (58 tracked)
wordCount1816
totalAiIsmAdverbs8
found
0
adverb"quickly"
count1
1
adverb"suddenly"
count1
2
adverb"very"
count3
3
adverb"sharply"
count1
4
adverb"slightly"
count1
5
adverb"deliberately"
count1
highlights
0"quickly"
1"suddenly"
2"very"
3"sharply"
4"slightly"
5"deliberately"
100.00% AI-ism character names
Target: 0 AI-default names (17 tracked, −20% each)
codexExemptions(empty)
found(empty)
100.00% AI-ism location names
Target: 0 AI-default location names (33 tracked, −20% each)
codexExemptions(empty)
found(empty)
55.95% AI-ism word frequency
Target: <2% AI-ism words (290 tracked)
wordCount1816
totalAiIsms16
found
0
word"pulsed"
count3
1
word"churned"
count1
2
word"gloom"
count1
3
word"warmth"
count2
4
word"footfall"
count3
5
word"absolutely"
count1
6
word"weight"
count1
7
word"could feel"
count1
8
word"pulse"
count1
9
word"perfect"
count2
highlights
0"pulsed"
1"churned"
2"gloom"
3"warmth"
4"footfall"
5"absolutely"
6"weight"
7"could feel"
8"pulse"
9"perfect"
100.00% Cliché density
Target: ≤1 cliche(s) per 800-word window
totalCliches0
maxInWindow0
found(empty)
highlights(empty)
100.00% Emotion telling (show vs. tell)
Target: ≤3% sentences with emotion telling
emotionTells0
narrationSentences155
matches(empty)
100.00% Filter word density
Target: ≤3% sentences with filter/hedge words
filterCount1
hedgeCount1
narrationSentences155
filterMatches
0"know"
hedgeMatches
0"seemed to"
100.00% Gibberish response detection
Target: ≤1% gibberish-like sentences (hard fail if a sentence exceeds 800 words)
analyzedSentences156
gibberishSentences0
adjustedGibberishSentences0
longSentenceCount0
runOnParagraphCount0
giantParagraphCount0
wordSaladCount0
repetitionLoopCount0
controlTokenCount0
repeatedSegmentCount0
maxSentenceWordsSeen59
ratio0
matches(empty)
100.00% Markdown formatting overuse
Target: ≤5% words in markdown formatting
markdownSpans1
markdownWords12
totalWords1821
ratio0.007
matches
0"Can't find it. You know the one with the stones? Meet me?"
89.29% Missing dialogue indicators (quotation marks)
Target: ≤10% speech attributions without quotation marks
totalAttributions7
unquotedAttributions1
matches
0"Cool-headed, she told herself."
100.00% Name drop frequency
Target: ≤1.0 per-name mentions per 100 words
totalMentions38
wordCount1797
uniqueNames13
maxNameDensity0.67
worstName"Rory"
maxWindowNameDensity2
worstWindowName"Eva"
discoveredNames
Richmond2
Park2
Roehampton1
February2
Golden1
Empress1
Eva8
Grove1
Rory12
Heartstone3
Hel1
Isolde3
Yu-Fei1
persons
0"Empress"
1"Eva"
2"Rory"
3"Heartstone"
4"Isolde"
5"Yu-Fei"
places
0"Richmond"
1"Park"
2"February"
3"Hel"
globalScore1
windowScore1
100.00% Narrator intent-glossing
Target: ≤2% narration sentences with intent-glossing patterns
analyzedSentences89
glossingSentenceCount1
matches
0"as if letting go would stop it"
100.00% "Not X but Y" pattern overuse
Target: ≤1 "not X but Y" per 1000 words
totalMatches1
per1kWords0.549
wordCount1821
matches
0"not where she was looking but"
81.20% Overuse of "that" (subordinate clause padding)
Target: ≤2% sentences with "that" clauses
thatCount4
totalSentences156
matches
0"sure, that the"
1"make that sound"
2"saw that the"
3"thought, that whatever"
100.00% Paragraph length variance
Target: CV ≥0.5 for paragraph word counts
totalParagraphs45
mean40.47
std28.24
cv0.698
sampleLengths
010
179
212
361
453
515
679
75
83
991
1050
115
1255
137
1489
1516
1633
1724
182
1956
2079
2146
2223
2313
244
2553
2653
2764
2812
2964
3019
3181
3239
3323
3455
3534
3673
3746
3864
3948
4025
4128
426
43107
4417
91.68% Passive voice overuse
Target: ≤2% passive sentences
passiveCount6
totalSentences155
matches
0"been locked"
1"been left"
2"was covered"
3"was gone"
4"was gone"
5"been trampled"
6"was shaped"
7"is shaped"
0.00% Past progressive (was/were + -ing) overuse
Target: ≤2% past progressive verbs
pastProgressiveCount10
totalVerbs310
matches
0"was being"
1"wasn't looking"
2"was rubbing"
3"was thinking"
4"was looking"
5"was standing"
6"wasn't looking"
7"was looking"
8"was wearing"
9"was still calling"
69.60% Em-dash & semicolon overuse
Target: ≤2% sentences with em-dashes/semicolons
emDashCount5
semicolonCount1
flaggedSentences4
totalSentences156
ratio0.026
matches
0"The bright blue of her eyes was useless in this light; everything was green-grey and red afterimages from the stone's glow."
1"She heard it before she saw it next — a soft press of undergrowth, a footfall that was not hers, light and deliberate, on ground that shouldn't make that sound."
2"And then — at the very edge of vision, not where she was looking but where the eye catches movement — something shifted."
3"She spun again, faster, hair whipping, and caught it — or caught the absence where it had been — a smear of pale movement slipping between two stones, there and then not, accompanied by a sound that was almost a breath, almost a laugh, almost the rustle of leaves in a language."
100.00% Purple prose (modifier overload)
Target: <4% adverbs, <2% -ly adverbs, no adj stacking
wordCount577
adjectiveStacks0
stackExamples(empty)
adverbCount21
adverbRatio0.036395147313691506
lyAdverbCount7
lyAdverbRatio0.012131715771230503
100.00% Repeated phrase echo
Target: ≤20% sentences with echoes (window: 2)
totalSentences156
echoCount0
echoWords(empty)
100.00% Sentence length variance
Target: CV ≥0.4 for sentence word counts
totalSentences156
mean11.67
std11.43
cv0.979
sampleLengths
010
145
22
314
418
512
621
73
826
911
107
1131
124
1311
143
157
165
176
183
1941
202
2116
228
233
245
253
268
2728
2813
2917
3025
316
323
3326
347
358
365
379
383
3928
4015
417
422
4313
4438
453
464
4729
4813
493
44.81% Sentence opener variety
Target: ≥60% unique sentence openers
consecutiveRepeats21
diversityRatio0.35064935064935066
totalSentences154
uniqueOpeners54
50.89% Adverb-first sentence starts
Target: ≥3% sentences starting with an adverb
adverbCount2
totalSentences131
matches
0"Only flowers, only shadow between"
1"Deliberately, neatly, away from her"
ratio0.015
64.27% Pronoun-first sentence starts
Target: ≤30% sentences starting with a pronoun
pronounCount51
totalSentences131
matches
0"She hadn't meant to be"
1"Her shoulder bag caught on"
2"She pushed it back and"
3"She could hear her own"
4"She told herself she was"
5"She'd been through the park"
6"She knew this place."
7"You know the one with"
8"She'd told Eva not to"
9"She started walking."
10"Her trainers sank a little"
11"It had rained in the"
12"She clicked on her phone"
13"They weren't decorative."
14"They were ancient oaks themselves,"
15"Her hand went to it"
16"She let go of the"
17"It kept pulsing, slow and"
18"Her voice sounded small."
19"It didn't carry the way"
ratio0.389
74.50% Subject-first sentence starts
Target: ≤72% sentences starting with a subject
subjectCount101
totalSentences131
matches
0"She hadn't meant to be"
1"The gates had been locked"
2"Her shoulder bag caught on"
3"She pushed it back and"
4"Traffic should have been audible"
5"The air was too still"
6"She could hear her own"
7"She told herself she was"
8"She'd been through the park"
9"She knew this place."
10"That was why Eva's text"
11"You know the one with"
12"Eva never turned her location"
13"Rory had checked."
14"The dot had pulsed steadily"
15"Isolde's grove, though Rory had"
16"She'd told Eva not to"
17"Eva had laughed."
18"She started walking."
19"Her trainers sank a little"
ratio0.771
100.00% Subordinate conjunction sentence starts
Target: ≥2% sentences starting with a subordinating conjunction
subConjCount4
totalSentences131
matches
0"Now Rory was alone instead."
1"Now it pulsed."
2"Therefore she should leave."
3"As if whatever made it"
ratio0.031
39.17% Technical jargon density
Target: ≤6% sentences with technical-jargon patterns
analyzedSentences62
technicalSentenceCount9
matches
0"She'd been through the park a hundred times on her bike doing drops for the Golden Empress, cutting across on daylight routes where the deer watched her pass wi…"
1"The dark felt less hostile than the narrow cone of light that made everything beyond it blacker."
2"They were ancient oaks themselves, or what was left of them, trunk-thick pillars of wood gone stony with age, bark fused into ridges that looked carved."
3"It kept pulsing, slow and steady, in time with something that was not her heartbeat."
4"She heard it before she saw it next — a soft press of undergrowth, a footfall that was not hers, light and deliberate, on ground that shouldn't make that sound."
5"But the afterimage remained: a suggestion of limbs that were too long, a head cocked at an angle no human neck would tolerate, standing just behind a trunk that…"
6"She spun again, faster, hair whipping, and caught it — or caught the absence where it had been — a smear of pale movement slipping between two stones, there and…"
7"It was shaped like a person the way a reflection is shaped like a person, with the proportions stretched just enough to be wrong, its skin the grey of lichen, i…"
8"She stayed pinned to the stone, bright blue eyes fixed on the thing in the clearing that was wearing a smile that didn't fit its face, and she understood, with …"
100.00% Useless dialogue additions
Target: ≤5% dialogue tags with trailing filler fragments
totalTags4
uselessAdditionCount0
matches(empty)
100.00% Dialogue tag variety (said vs. fancy)
Target: ≤10% fancy dialogue tags
totalTags2
fancyCount0
fancyTags(empty)
dialogueSentences3
tagDensity0.667
leniency1
rawRatio0
effectiveRatio0
84.6442%